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It was just after christmas when little annie went to the village store to buy some caddies and few things for her mother.
that will be $10.50 Annie, said the storekeepere annie handed over a $10 bill & $5 bill And waited for her change.
I cannot give you the goods or change until your mother comes in Annie the storekeeper explained in very friendly tone why?

Little Annie's mother owns the store. Just after Christmas, the shopkeeper is present to do small transactions but is unable to refill the till without the mother's keys. He does not have the right change to give Annie, and thus cannot sell her the goods nor give her change until her mother comes in.

annies mother bought her a christmas gift on her credit card. after christmas, annie returned the present for store credit and exchanged it for another item. Since the item was purchased on her mothers credit card, the transaction cannot be finalized without her mothers present